>> Frankie Rayder to Walk Alexander Wang; Erin Wasson's Mysterious A-List Guest, Musical Act — Alexander Wang is known to bring familiar model faces back into the runway mix for his show, and this season, rumors are going around that Frankie Rayder — who walked Michael Kors last season — will do his catwalk; her sister, Missy Rayder, recently posed for Wang's lookbook.  Style.com promises that Erin Wasson's RVCA show tomorrow, too, will be "memorable . . . for reasons we mostly cannot elaborate" — she has a mysterious band playing and a mysterious A-List guest attending. [Style File, Style File]